I Faction Changed one of my character a week ago and the model still not show on Armory.
Created a new character yesterday and the model also does not show on Armory.
Faction Changed and Server Transferred another character today and I’m afraid it will be “modelless” forever like the others. (edit: and now worst, it does not show on my list of characters anymore on Armory, was showing after 30 minutes or so I did the transfer)
Is not a big issue on Armory, but all services that use the Blizzard API to retrieve your characters show no avatar or image for the character, it includes the Blizzard companion app on mobile.